Rumi's Masnavi, part 5: On love, The Toilet That Can Save Our Water and Energy Problems,

A man in love, no matter what he saysThe smell of love wafts love-ward from his mouthHe speaks of jurisprudence, what emerges?From mystic poverty a sweet effulgenceHe blasphemes, the scent of faith arisesHe offers doubts, no doubt we grow more sureMasnavi 1: 2880-82